Whatever the cause of his death, the reported connection to opioids will likely compound fears regarding the treatment of pain and addiction.
The Thai case will compound fears in Asia of a repeat of a 2002-2003 oftbreak of severe acute respiratory syndrome (Sars), which began in China and killed about 800 people globally.
Next is the first of the retailers to give a sense of current trading and will compound fears that the Games will fail to drag the UK out of recession.
The shooting here, in a western suburban county that only yesterday began relaxing its restrictions on outdoor school activities, compounded fear and anger that the sniper seems to be treating the commuter belt as a kind of grotesque preserve for hunting innocent strangers.
The Senate remains the entrenched club of old bulls that, in a decrepitude the compounds fear, have failed to conjure any will to change at all.
Deepening problems in the European banking industry have compounded fears of a worldwide downturn.
The company has also not yet conclusively identified the source of the contamination, compounding fears.
Britain's economic data has also compounded fears that the emirate overpaid when it gave the Ministry of Defence (MoD) £959m for the site in 2007.
For stock markets, worries about the 23 June referendum compounded fears of a global economic slowdown, falling oil prices and next week's Federal Reserve meeting on US interest rates.
The American military drawdown is scheduled to come as Afghanistan turns to electing a new president, compounding fears that there will not be a peaceful transition of power.
Recent write-offs by French banks over their own Greek bond holdings have compounded fears over the health of Europe's banks.
